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2004 GMC Yukon XL 1500 Denali 6.0L Poor Idle Quality, Cuts out, Misfire
Posted to GM Driveability on 8/15/2019 16 Replies

this is beating me bad! customer just bought truck so no prior history, he replaced the plugs, wires and maf with cheepo autozone junk, it ran really poorly and had no power. We found intake leaking and replaced the gasket and we replaced everything he ins...

16 Replies Received (View Replies)

  Related Documents & Media  2004 GMC Yukon XL 1500 Denali

 
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car Vehicle Data

2004 GMC Yukon XL 1500 Denali

VIN 1GKFK66U94
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / random misfire
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Cuts Out, Misfire
OccursIntermittently

Trouble Codes

P0300Multiple Misfire Detected
Message Closed

car Vehicle Data

2004 GMC Yukon XL 1500 Denali

VIN 1GKFK66U94
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / random misfire
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Cuts Out, Misfire
OccursIntermittently

Trouble Codes

P0300Multiple Misfire Detected